Curtain arrangement for preventing spread of smoke

An end bar for a curtain arrangement, comprising:

• a pair of elongated clamping bar legs extending in part parallel to and opposite to one another, each of said bar legs being provided at one end with a flange or connection cross-piece extending towards the other bar leg, whereas the opposite end of each bar leg has a clamping surface, the clamping surface of both bar legs being substantially parallel in a clamping position of said bar legs, an inclined wall portion being provided on each of said bar legs between said flange or connection cross-piece and said clamping surface, the inclined wall portions of both bar legs converging towards said clamping surfaces;
• a clamp piece between said bar legs to receive an end portion of said curtain arrangement wrapped around it and frictionally held by said inclined wall portions when engaging them under the weight of said bar legs;
• and
• clamping means engageable with the flanges or connection-cross-pieces for interconnecting the bar legs and clamping said clamping surfaces together.

A curtain arrangement comprising:

• at least one web of temperature resistant material having two opposite web surfaces and lateral edge regions on either side of the web, said web being adapted to be wound onto and unwound from a coil;
• at least one core winding said at least one web to form said coil, said core having two axially spaced ends;
• drive means to move said curtain in a vertical direction, said drive means being arranged on one of said axially spaced ends of said core and exerting a gravitational force on the end by its own weight;
• guide and holding means for said web including a bearing arrangement having at least one substantially stationary supporting surface beneath said core and the respective coil so as to allow the coil to rest on said supporting surface, said guide and holding means further including guide means for providing guided vertical movement of said core and coil upon unwinding, said bearing arrangement including elastic propping means arranged at one of said axially spaced ends for exerting a vertically upward force on said core to support said core in opposition to a gravitational force.

A curtain arrangement comprising:

• a substantially enclosed casing, said casing having a slot;
• at least one web of temperature resistant material having two opposite web surfaces and lateral edge regions on either side of the web, said web being adapted to be wound onto and unwound from a coil substantially surrounded by said casing, said web extending through said slot in an unwound configuration of said web on said core;
• at least one core winding said web to form said coil, said core being disposed substantially within said casing and having two axially spaced ends;
• guide and holding means for said web including a bearing arrangement disposed in said casing and having at least one substantially stationary supporting surface beneath said core and the respective coil so as to allow the coil to rest on said supporting surface, said guide and holding means further including guide means disposed in said casing for providing guided vertical movement of said core and coil upon unwinding;
• and
• an end bar clamped to a lower edge of said web, said end bar substantially closing said slot in a wound configuration of said web on said core.